Algebra 1 3.6
Reciprocals and Division
https://www.youtube.com/watch?v=-Te57fkE6Gc
Did you know that:
By stating the objectives
for the lesson, retention
increases by 24%!
Review:
Talk with the people on your table about:
2. Consider the fraction . What does the denominator tell you?
Give a real-life ...
Step 1: convert decimal to fraction.
Step 2: Find the reciprocal.
How do you find the reciprocal of 3.14?
Find the reciprocal of this decimal:
Find the reciprocal of this decimal:
1) 45.65
2) 632.6
3) 2.239
4) 0.10394
Reciprocal Properties:
Property of Reciprocals: a 1
a
= 1 a1
a
= 1
Reciprocal of the Opposite:
a
1
-a
= -
1
Reciprocal of ...
Division = Multiplying by a reciprocal
Examples:
Simplifying Simple Expressions with Reciprocals:
1
-7
1
4
1
4
4y 1
3
-6ab -
Simplifying Complicated Expressions with Reciprocals:
1
3
(42x - 3y)
Practice Problems in Algebra 1 Textbook
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Alg 1 3.6 Reciprocals and Division
Upcoming SlideShare
Loading in …5
×

Alg 1 3.6 Reciprocals and Division

1,874 views
1,603 views

Published on

Published in: Technology, Design
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,874
On SlideShare
0
From Embeds
0
Number of Embeds
505
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Alg 1 3.6 Reciprocals and Division

  1. 1. Algebra 1 3.6 Reciprocals and Division https://www.youtube.com/watch?v=-Te57fkE6Gc
  2. 2. Did you know that: By stating the objectives for the lesson, retention increases by 24%!
  3. 3. Review:
  4. 4. Talk with the people on your table about: 2. Consider the fraction . What does the denominator tell you? Give a real-life example of this fraction. 4 5 3. What happens when you multiply by its reciprocal, ? Why? 4 5 4 5 1. What operation is being represented in ? How do you know? 4 5
  5. 5. Step 1: convert decimal to fraction. Step 2: Find the reciprocal. How do you find the reciprocal of 3.14?
  6. 6. Find the reciprocal of this decimal:
  7. 7. Find the reciprocal of this decimal:
  8. 8. 1) 45.65 2) 632.6 3) 2.239 4) 0.10394
  9. 9. Reciprocal Properties: Property of Reciprocals: a 1 a = 1 a1 a = 1 Reciprocal of the Opposite: a 1 -a = - 1 Reciprocal of a Product: = 1 ab 1 a 1 b
  10. 10. Division = Multiplying by a reciprocal Examples:
  11. 11. Simplifying Simple Expressions with Reciprocals: 1 -7 1 4 1 4 4y 1 3 -6ab -
  12. 12. Simplifying Complicated Expressions with Reciprocals: 1 3 (42x - 3y)
  13. 13. Practice Problems in Algebra 1 Textbook

×